Question 121833
-13X+6>-12X-6
-13X+12X>-6-6
-X>-12
X<-12/-1 DIVIDING BY A NEGATIVE VALUE CHANGES THE > SIGN TO A < SIGN.
X<12 ANSWER.
PROOF.
LET X=11.9
-13*11.9+6>-12*11.9-6
-154.7+6>-142.8-6
-148.7>-148.8